Tray for incubators.



No. 685,|34. V Patented Oct. 22, 190l. G. W. GREEN.

TRAY FOB INCUBATORS.

(Application filed on. 25, 1900. (No Model.)

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. UNITED STATES PATENT OFFICE.

, GEORGE WILLIAM GREEN, on WoY WOY, NEW SOUTH WALEs, AssIcNoR WALES.

s NOYES, 0F SYDNEY, NEW SOUTH TRAY FO R IN cu BATO Rs.

SPECIFICATION forming part of Letters Patent No. 685,134, dated October2 2, 1901. Application filed October 25,1900. Serial No. 34,354- (Nomodel.)

T0 at whom, it may concern:

Be it known that I, GEO GE WILLIAM GREEN, carpenter, a subject of theQueen of Great Britain, residing at Woy Woy, in the British Colony ofNew South Wales, have invented new and useful Improvements in Trays,Drawers, and other Egg-Frames for Incubators, of which the following isa specification.

This invention relates to improvements in trays, drawers, and otheregg-frames for incubators; and it has been specially devised so that theeggs in incubators may be easily and quickly changed or turned withoutdanger to them or the embryo. At the same time it allows a fiatandsmooth and unconfined surface to be available for the hatched chickensand such a surface as is easily cleansed and easily renewable.

A tray or drawer or other egg-frame for incnbators constructed accordingto this invention has as its essential feature a false bottom adapted tobe drawn to and fro below the eggs resting upon it in confined spaces,so that upon its movement the eggs will be turned or revolved more orless thereon. In the construction of such a tray, drawer, or frame it ispreferred to use textile fabric as such false bottom and to arrange thatit will wind upon rollers (upon their revolution bya key) at oppositeends of the tray, drawer, or frame. are provided by a secondary frametaking over the false bottom, such secondary frame being removable, soas to-leave a clear space for the .use of the hatched chickens and sothat the false bottom may also be removed and washed or renewed.

In order that this invention may be clearly understood, reference willnow be made to the drawings herewith, in which-= Figure 1 is aperspective view of a tray, drawer, or egg-frame for an incubatorconstructed according to this invention. Fig. 2 is a cross-section ofthe same, and Fig. 3 a plan of one of the rollers for holding and movingthe false bottom.

A is the main frame, adapted to fit into the incubating-chamber. Thebottom A'-say of woven wire-is attached to the main frame A The confinedspaces for the eggs by frame or slats A screwedthereto. At one endinside said frame A are U-shaped receptacles or bearings B and at theother end corresponding bearings O for the reception of rollers B and C,respectively. Either end of these rollers is adapted to have fittingthereon or therein a key or turning-lever, as shown in Fig. 3. I

B is a square end for a socket on the key F, (shown in use in Fig. 1,)and B is a socket end for a key end. The key is passed through anorifice (closed, as desired) in the wall of the incubating-chamber andthrough holes A in the frame A. To these rollers are attached, by meansof V-grooves and slats, as shown, or by other means, the ends of aslightly open-work woven strip-say of cotton-forming the false bottom D.This strip, though apparently solid, as shown, is preferably of suchtexture that the heated air of the incubating-chamber will have freepassage therethrough. It is also of such a length that there will be one'or two wrappings around one of the rollers--that is, it is ofsufficient excess length to insure not less than a full revolution of anegg resting thereon. Fitting within the frame A and the bearings B and Ois the secondary frame E, having cross-pieces or corrugated strips Edividing the whole into egg-spaces, so as to prevent eggs in such spacesfrom travelingwith the moving false bottom. This frame E rests at thesides on the bottom A' and may have a clearance for said false bottom atthe ends, though it is not of sufficient weight to be an obstacle to themovement, even if it rested It is easily lifted the bottom A and withone end fully rolled around one of the rollers B or O. The eggs, whethermarked or not is immaterial, though they are preferably marked, areplaced in the spaces of the frame E. During the process of 5 secondaryframe E is removed to allow of a fiat and smooth surface being ready forthe chickens. This changing or turning is achieved by revolving orpartly revolving one of the rollers B and C and winding false bottom Dthereon, as may be clearly seen from the foregoing description. Thiswinding and unwinding of the false bottom draws it across the frame andcauses each egg confined in its own space to partly revolve by reason ofthe movement of said false bottom beneath it.

Many and various devices for carrying this invention into practicaloperation might be devised (though the best now known is describedherein) without departing from the nature and essence of thesepresentimprovements, and it is to be particularly understood that thesaid invention is not confined to the precise manner nor the detailsthereof herein set forth and described of constructing these saidimprovements.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is In an incubator, the combination with a frame, a bottomtherefor, a false bottom mounted thereon, and means for moving the saidbottom, of a secondary frame mounted upon said false bottom, and aseriesof transversely-extending corrugated strips, standing on edge, rigidlysecured to the inner face of the sides of said stationary frame andarranged in pairs with the backs of the corrugations of each of saidpair of strips engaging each other to form parallel rows ofcommunicating egg-spaces with substantially elliptical-shaped sidewalls.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE \VILLIAM GREEN.

\Vitnesses:

PERCY NEWELL, M. J. CANDRICKi

